package cn.tedu.boot31.controller;

import cn.tedu.boot31.entity.Product;
import cn.tedu.boot31.mapper.ProductMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;

@RestController
public class ProductController {
    @Autowired(required = false)
    ProductMapper mapper;
        @RequestMapping("/insert")
        public String insert(Product product){
            System.out.println("product = " + product);
            mapper.insert(product);
            return "添加完成!<a href='/'>返回首页</a>";
        }
        @RequestMapping("/select")
        public String select(){
            List<Product> list = mapper.select();
            String html = "<table border=1>";
            html+="<caption>商品列表</caption>";
            html+="<tr><th>标题</th><th>价格</th><th>销量</th><th>操作</th></tr>";
            //把商品数据装进表格标签里面
            for (Product p: list) {
                html+="<tr>";
                html+="<td>"+p.getTitle()+"</td>";
                html+="<td>"+p.getPrice()+"</td>";
                html+="<td>"+p.getSaleCount()+"</td>";
                html+="<td><a href='/delete?id="+p.getId()+"'>删除</a></td>";
                html+="</tr>";
            }
            html+="</table>";
            return html;
        }
        @RequestMapping("/update")
        public String update(Product product){
            mapper.update(product);
           return "修改完成!<a href='/'>返回首页</a>";
        }
        @RequestMapping("/delete")
        public String delete(int id){
          mapper.delete(id);
          return "删除完成!<a href='/select'>返回列表页面</a>";
        }
}
